Outage in Tessian US
Slow Defender Checks
Resolved Minor
February 24, 2026 - Started 2 months ago
- Lasted 2 days
Incident Report
Around 4pm UTC we began seeing delayed Defender checks for inbound emails. For API users, emails may experience up to a 600 second delay for emails to be checked and quarantined.
We are looking into this and will provide updates here.
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Latest Updates ( sorted recent to last )
MONITORING
2 months ago - at 02/24/2026 06:20PM
We are no longer seeing delays in CEPAPI Defender checks.
Our team is continuing to monitor this issue.
IDENTIFIED
2 months ago - at 02/24/2026 05:19PM
Around 4pm UTC we began seeing delayed Defender checks for inbound emails. For API users, emails may experience up to a 600 second delay for emails to be checked and quarantined.
We are looking into this and will provide updates here.
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